I haven't heard her new cd yet, but I do have a live recording of the Shallow Brown song shortly after she wrote it. If it's much the same as her original, it is an absolutely stunning piece. I got the chills and cried every time I heard it for about a year. I tried to tell her how much I liked it, but started bawling and couldn't get the words out. Wow.
I'm not sure where she got her version of Shallow Brown (the traditional chantey), but she definitely wrote the part where the man talks about "my Julianna, my life, my aching."